VM: Re-format to use at most one newline between functions

runtime/vm/zone.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_ZONE_H_
 #define RUNTIME_VM_ZONE_H_
 
 #include "platform/utils.h"
 #include "vm/allocation.h"
 #include "vm/handles.h"
 #include "vm/json_stream.h"
+#include "vm/memory_region.h"
 #include "vm/thread.h"
-#include "vm/memory_region.h"
 
 namespace dart {
 
 // Zones support very fast allocation of small chunks of memory. The
 // chunks cannot be deallocated individually, but instead zones
 // support deallocating all chunks in one fast operation.
 
 class Zone {
  public:
   // Allocate an array sized to hold 'len' elements of type
@@ skipping 11 matching lines @@
                               intptr_t new_len);
 
   // Allocates 'size' bytes of memory in the zone; expands the zone by
   // allocating new segments of memory on demand using 'new'.
   //
   // It is preferred to use Alloc<T>() instead, as that function can
   // check for integer overflow.  If you use AllocUnsafe, you are
   // responsible for avoiding integer overflow yourself.
   inline uword AllocUnsafe(intptr_t size);
 
-
   // Make a copy of the string in the zone allocated area.
   char* MakeCopyOfString(const char* str);
 
   // Make a copy of the first n characters of a string in the zone
   // allocated area.
   char* MakeCopyOfStringN(const char* str, intptr_t len);
 
   // Concatenate strings |a| and |b|. |a| may be NULL. If |a| is not NULL,
   // |join| will be inserted between |a| and |b|.
   char* ConcatStrings(const char* a, const char* b, char join = ',');
@@ skipping 102 matching lines @@
 
   friend class StackZone;
   friend class ApiZone;
   template <typename T, typename B, typename Allocator>
   friend class BaseGrowableArray;
   template <typename T, typename B, typename Allocator>
   friend class BaseDirectChainedHashMap;
   DISALLOW_COPY_AND_ASSIGN(Zone);
 };
 
-
 class StackZone : public StackResource {
  public:
   // Create an empty zone and set is at the current zone for the Thread.
   explicit StackZone(Thread* thread);
 
   // Delete all memory associated with the zone.
   ~StackZone();
 
   // Compute the total size of this zone. This includes wasted space that is
   // due to internal fragmentation in the segments.
@@ skipping 31 matching lines @@
     position_ += size;
   } else {
     result = AllocateExpand(size);
   }
 
   // Check that the result has the proper alignment and return it.
   ASSERT(Utils::IsAligned(result, kAlignment));
   return result;
 }
 
-
 template <class ElementType>
 inline void Zone::CheckLength(intptr_t len) {
   const intptr_t kElementSize = sizeof(ElementType);
   if (len > (kIntptrMax / kElementSize)) {
     FATAL2("Zone::Alloc: 'len' is too large: len=%" Pd ", kElementSize=%" Pd,
            len, kElementSize);
   }
 }
 
-
 template <class ElementType>
 inline ElementType* Zone::Alloc(intptr_t len) {
   CheckLength<ElementType>(len);
   return reinterpret_cast<ElementType*>(AllocUnsafe(len * sizeof(ElementType)));
 }
 
 template <class ElementType>
 inline ElementType* Zone::Realloc(ElementType* old_data,
                                   intptr_t old_len,
                                   intptr_t new_len) {
@@ skipping 18 matching lines @@
   if (old_data != 0) {
     memmove(reinterpret_cast<void*>(new_data),
             reinterpret_cast<void*>(old_data), old_len * kElementSize);
   }
   return new_data;
 }
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_ZONE_H_